I have an issue I am hoping maybe someone already has a solution to or perhaps someone can point me in the right direction.

I need to do in system programming using my 80c517a. Here is my idea so far.

Using 2 flash memory's (AT29c256) program one eprom while the other is running the code. The problem with this is that once the system is shut down the uC does not know which eprom to enable. I have looked into using a boot loader, but I'm not sure how to impliment it.

What do you think??